Limits on another ghastly line in fabric design (6)
I believe the answer is:
argyle
'design' is the definition.
(I know that argyle is a type of design)
I don't understand how the rest of the clue works.
(Other definitions for argyle that I've seen before include "Diamond-shaped knitting pattern" , "Lozenge-patterned sock" , "Woolly design" , "Design of diamond shapes, based on a Scottish clan tartan" , "Diamond-shaped pattern for woollens" .)